Who owns OMAB
Which tracked institutional funds hold OMAB, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See OMAB company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
38 tracked funds added or opened OMAB while 19 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
OMAB’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes OMAB more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in OMAB divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 168 tracked filers holding OMAB, 94 increased or opened the position and 67 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in OMAB between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 6
- Militia Capital Management LLC$10M
- Qube Research & Technologies Ltd$1M
- Templeton & Phillips Capital Management, LLC$826K
- Advisors Preferred, LLC$644K
- XTX Topco Ltd$578K
- Quantbot Technologies LP$505K
Full exits 8
- BAROMETER CAPITAL MANAGEMENT INC.$13M
- Janney Montgomery Scott LLC$11M
- Militia Capital Partners, LP$9M
- Allianz Asset Management GmbH$1M
- JANE STREET GROUP, LLC$1M
- Capital Innovations LLC$1M
Largest adds
- Nuveen, LLC$49M
- BlackRock, Inc.$16M
- Russell Investments Group, Ltd.$14M
- Empirical Finance, LLC$9M
- STATE STREET CORP$9M
- Empowered Funds, LLC$8M
Largest trims
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$9M
- AQR CAPITAL MANAGEMENT LLC$9M
- MILLENNIUM MANAGEMENT LLC$3M
- HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND$1M
- Maryland State Retirement & Pension System$704K
- FMR LLC$644K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 1,288,032 | $148M | 21.8% | 2026-Q1 |
| Nuveen, LLC added | 538,423 | $62M | 9.1% | 2026-Q1 |
| STATE STREET CORP added | 387,758 | $44M | 6.6% | 2026-Q1 |
| MORGAN STANLEY trimmed | 299,007 | $34M | 5.1% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 195,616 | $22M | 3.3% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 184,191 | $21M | 3.1% | 2026-Q1 |
| Empowered Funds, LLC added | 168,401 | $19M | 2.9% | 2026-Q1 |
| Empirical Finance, LLC added | 168,343 | $19M | 2.9% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 156,200 | $18M | 2.6% | 2026-Q1 |
| CANADA PENSION PLAN INVESTMENT BOARD | 149,370 | $17M | 2.5% | 2026-Q1 |
| Fisher Funds Management LTD added | 148,551 | $17M | 2.5% | 2026-Q1 |
| 1832 Asset Management L.P. added | 147,600 | $17M | 2.5% | 2026-Q1 |
| Aberdeen Group plc trimmed | 121,444 | $14M | 2.1% | 2026-Q1 |
| Militia Capital Management LLC new | 84,826 | $10M | 1.4% | 2026-Q1 |
| Voleon Capital Management LP trimmed | 69,651 | $8M | 1.2% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 58,131 | $7M | 1.0% | 2026-Q1 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND trimmed | 54,200 | $6M | 0.9% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 52,372 | $6M | 0.9% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 49,966 | $6M | 0.8% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 46,211 | $5M | 0.8% | 2026-Q1 |
| MACKENZIE FINANCIAL CORP added | 43,174 | $5M | 0.7% | 2026-Q1 |
| Advisors Capital Management, LLC added | 43,045 | $5M | 0.7% | 2026-Q1 |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO | 43,000 | $5M | 0.7% | 2026-Q1 |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC added | 42,887 | $5M | 0.7% | 2026-Q1 |
| Metis Global Partners, LLC added | 36,956 | $4M | 0.6% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 34,579 | $4M | 0.6% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 34,082 | $4M | 0.6% | 2026-Q1 |
| NORTHERN TRUST CORP added | 32,132 | $4M | 0.5% | 2026-Q1 |
| U S GLOBAL INVESTORS INC trimmed | 30,150 | $3M | 0.5% | 2026-Q1 |
| Maryland State Retirement & Pension System trimmed | 30,066 | $3M | 0.5% | 2026-Q1 |
| SEI INVESTMENTS CO added | 28,991 | $3M | 0.5% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 27,676 | $3M | 0.5% | 2026-Q1 |
| FMR LLC trimmed | 26,890 | $3M | 0.5% | 2026-Q1 |
| CANADA LIFE ASSURANCE Co trimmed | 24,753 | $3M | 0.4% | 2026-Q1 |
| Quent Capital, LLC | 24,729 | $3M | 0.4% | 2026-Q1 |
| EverSource Wealth Advisors, LLC added | 12,667 | $3M | 0.4% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 22,994 | $3M | 0.4% | 2026-Q1 |
| NAPLES GLOBAL ADVISORS, LLC trimmed | 21,360 | $2M | 0.4% | 2026-Q1 |
| Uniplan Investment Counsel, Inc. added | 18,994 | $2M | 0.3% | 2026-Q1 |
| Malaga Cove Capital, LLC trimmed | 18,973 | $2M | 0.3% | 2026-Q1 |
| NATIONAL BANK OF CANADA /FI/ added | 18,306 | $2M | 0.3% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 17,452 | $2M | 0.3% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 17,342 | $2M | 0.3% | 2026-Q1 |
| Integrated Quantitative Investments LLC | 17,335 | $2M | 0.3% | 2026-Q1 |
| Invesco Ltd. trimmed | 17,040 | $2M | 0.3% | 2026-Q1 |
| TrueMark Investments, LLC added | 15,136 | $2M | 0.3% | 2026-Q1 |
| OPAL CAPITAL LLC added | 15,136 | $2M | 0.3% | 2026-Q1 |
| Partners Group Holding AG | 14,380 | $2M | 0.2% | 2026-Q1 |
| RITHOLTZ WEALTH MANAGEMENT added | 13,746 | $2M | 0.2% | 2026-Q1 |
| ABS Direct Equity Fund LLC | 13,650 | $2M | 0.2% | 2026-Q1 |
| Vident Advisory, LLC added | 12,498 | $1M | 0.2% | 2026-Q1 |
| Hunter Perkins Capital Management, LLC trimmed | 12,200 | $1M | 0.2% | 2026-Q1 |
| Quantinno Capital Management LP added | 12,076 | $1M | 0.2% | 2026-Q1 |
| OSAIC HOLDINGS, INC. trimmed | 11,985 | $1M | 0.2% | 2026-Q1 |
| NOVEM GROUP added | 11,152 | $1M | 0.2% | 2026-Q1 |
| GUGGENHEIM CAPITAL LLC added | 10,372 | $1M | 0.2% | 2026-Q1 |
| &PARTNERS added | 10,188 | $1M | 0.2% | 2026-Q1 |
| Eurizon Capital SGR S.p.A. added | 10,168 | $1M | 0.2% | 2026-Q1 |
| Parvin Asset Management, LLC added | 9,890 | $1M | 0.2% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 9,717 | $1M | 0.2% | 2026-Q1 |
| BANK OF MONTREAL /CAN/ trimmed | 9,569 | $1M | 0.2% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 9,549 | $1M | 0.2% | 2026-Q1 |
| RENAISSANCE GROUP LLC trimmed | 9,253 | $1M | 0.2% | 2026-Q1 |
| Caprock Group, LLC added | 9,239 | $1M | 0.2% | 2026-Q1 |
| Creative Planning added | 8,867 | $1M | 0.2% | 2026-Q1 |
| Federation des caisses Desjardins du Quebec added | 8,323 | $955K | 0.1% | 2026-Q1 |
| RBF Capital, LLC | 8,000 | $918K | 0.1% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 7,715 | $885K | 0.1% | 2026-Q1 |
| Private Advisor Group, LLC trimmed | 7,709 | $884K | 0.1% | 2026-Q1 |
| UBS Group AG added | 7,327 | $841K | 0.1% | 2026-Q1 |
| Templeton & Phillips Capital Management, LLC new | 7,200 | $826K | 0.1% | 2026-Q1 |
| Marshall Financial Group, LLC added | 7,142 | $819K | 0.1% | 2026-Q1 |
| Sage Investment Counsel LLC | 7,000 | $803K | 0.1% | 2026-Q1 |
| O'Brien Greene & Co. Inc added | 6,207 | $712K | 0.1% | 2026-Q1 |
| Amundi added | 5,972 | $685K | 0.1% | 2026-Q1 |
| KESTRA PRIVATE WEALTH SERVICES, LLC trimmed | 5,696 | $654K | 0.1% | 2026-Q1 |
| Advisors Preferred, LLC added | 5,613 | $644K | 0.1% | 2026-Q1 |
| Meixler Investment Management, Ltd. trimmed | 5,485 | $640K | 0.1% | 2026-Q1 |
| Pekin Hardy Strauss, Inc. trimmed | 5,350 | $614K | 0.1% | 2026-Q1 |
| BAROMETER CAPITAL MANAGEMENT INC. added | 63,280 | $13M | 1.9% | 2025-Q4 stale |
| Janney Montgomery Scott LLC new | 101,477 | $11M | 1.6% | 2025-Q4 stale |
| Militia Capital Partners, LP | 83,046 | $9M | 1.3% | 2025-Q4 stale |
| Legacy Advisors, LLC new | 20 | $4M | 0.6% | 2025-Q1 stale |
| Maxi Investments CY Ltd new | 24,900 | $3M | 0.4% | 2025-Q2 stale |
| Capital Wealth Planning, LLC added | 23,675 | $2M | 0.4% | 2025-Q3 stale |
| Capitolis Liquid Global Markets LLC new | 24,300 | $2M | 0.3% | 2025-Q1 stale |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd added | 17,920 | $2M | 0.3% | 2025-Q2 stale |
| HRT FINANCIAL LP added | 15,402 | $2M | 0.2% | 2025-Q3 stale |
| Allianz Asset Management GmbH added | 10,976 | $1M | 0.2% | 2025-Q4 stale |
| Anthracite Investment Company, Inc. | 10,625 | $1M | 0.2% | 2025-Q2 stale |
| JANE STREET GROUP, LLC trimmed | 9,494 | $1M | 0.2% | 2025-Q4 stale |
| Capital Innovations LLC new | 9,365 | $1M | 0.2% | 2025-Q4 stale |
| MANGROVE PARTNERS IM, LLC new | 7,786 | $809K | 0.1% | 2025-Q3 stale |
| Campbell & CO Investment Adviser LLC trimmed | 10,104 | $794K | 0.1% | 2025-Q1 stale |
| Jump Financial, LLC trimmed | 7,300 | $794K | 0.1% | 2025-Q4 stale |
| AXA S.A. | 7,480 | $789K | 0.1% | 2025-Q2 stale |
| AXA Investment Managers S.A. new | 7,480 | $777K | 0.1% | 2025-Q3 stale |
| Banco BTG Pactual S.A. trimmed | 6,908 | $718K | 0.1% | 2025-Q3 stale |
| Itau Unibanco Holding S.A. trimmed | 6,479 | $684K | 0.1% | 2025-Q2 stale |
| Y-Intercept (Hong Kong) Ltd added | 5,349 | $582K | 0.1% | 2025-Q4 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.